Re: "Vacuum catastrophe" and string theory

On May 8, 5:54 pm, Sam Wormley <sworml...@xxxxxxxxx> wrote:
mike3 wrote:
Hi.

Does string theory purport a solution to the so-called "vacuum
catastrophe" problem? This problem is how to rationalize the huge zero
point energy (ZPE) of the vacuum predicted by quantum mechanics, with
the experimentally small cosmological constant (lambda). How does it
do this? It's a tough situation. If you toss out the huge ZPE and
decide instead it should be tiny, then you toss quantum mechanics. If
you toss out the cosmological constant in favor of the quantum
predictions, then you toss out general relativity. But string theory
is supposed to combine these two, and if it does that, it should be
able to answer this problem. So how does it?

String theory has yet to make a testable prediction. Therefore it
is not scientific!

Observation strongly constrain a value for a cosmological constant
in GTR.

So then you're saying string theory does not know how to rationalize,
nor is there any way to test any proposed rationalization. And if it
is
not scientific, why bother? Why not try a different approach?

.

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